diff options
Diffstat (limited to 'target/linux/ipq40xx/files-5.4/drivers/net/phy/ar40xx.c')
| -rw-r--r-- | target/linux/ipq40xx/files-5.4/drivers/net/phy/ar40xx.c | 1890 |
1 files changed, 0 insertions, 1890 deletions
diff --git a/target/linux/ipq40xx/files-5.4/drivers/net/phy/ar40xx.c b/target/linux/ipq40xx/files-5.4/drivers/net/phy/ar40xx.c deleted file mode 100644 index f7ce42b9ff..0000000000 --- a/target/linux/ipq40xx/files-5.4/drivers/net/phy/ar40xx.c +++ /dev/null @@ -1,1890 +0,0 @@ -/* - * Copyright (c) 2016, The Linux Foundation. All rights reserved. - * - * Permission to use, copy, modify, and/or distribute this software for - * any purpose with or without fee is hereby granted, provided that the - * above copyright notice and this permission notice appear in all copies. - * THE SOFTWARE IS PROVIDED "AS IS" AND THE AUTHOR DISCLAIMS ALL WARRANTIES - * WITH REGARD TO THIS SOFTWARE INCLUDING ALL IMPLIED WARRANTIES OF - * MERCHANTABILITY AND FITNESS. IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR - * ANY SPECIAL, DIRECT, INDIRECT, OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES - * WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR PROFITS, WHETHER IN AN - * ACTION OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING OUT - * OF OR IN CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE. - */ - -#include <linux/bitfield.h> -#include <linux/module.h> -#include <linux/list.h> -#include <linux/bitops.h> -#include <linux/switch.h> -#include <linux/delay.h> -#include <linux/phy.h> -#include <linux/clk.h> -#include <linux/reset.h> -#include <linux/lockdep.h> -#include <linux/workqueue.h> -#include <linux/of_device.h> -#include <linux/of_address.h> -#include <linux/of_mdio.h> -#include <linux/mdio.h> -#include <linux/gpio.h> - -#include "ar40xx.h" - -static struct ar40xx_priv *ar40xx_priv; - -#define MIB_DESC(_s , _o, _n) \ - { \ - .size = (_s), \ - .offset = (_o), \ - .name = (_n), \ - } - -static const struct ar40xx_mib_desc ar40xx_mibs[] = { - MIB_DESC(1, AR40XX_STATS_RXBROAD, "RxBroad"), - MIB_DESC(1, AR40XX_STATS_RXPAUSE, "RxPause"), - MIB_DESC(1, AR40XX_STATS_RXMULTI, "RxMulti"), - MIB_DESC(1, AR40XX_STATS_RXFCSERR, "RxFcsErr"), - MIB_DESC(1, AR40XX_STATS_RXALIGNERR, "RxAlignErr"), - MIB_DESC(1, AR40XX_STATS_RXRUNT, "RxRunt"), - MIB_DESC(1, AR40XX_STATS_RXFRAGMENT, "RxFragment"), - MIB_DESC(1, AR40XX_STATS_RX64BYTE, "Rx64Byte"), - MIB_DESC(1, AR40XX_STATS_RX128BYTE, "Rx128Byte"), - MIB_DESC(1, AR40XX_STATS_RX256BYTE, "Rx256Byte"), - MIB_DESC(1, AR40XX_STATS_RX512BYTE, "Rx512Byte"), - MIB_DESC(1, AR40XX_STATS_RX1024BYTE, "Rx1024Byte"), - MIB_DESC(1, AR40XX_STATS_RX1518BYTE, "Rx1518Byte"), - MIB_DESC(1, AR40XX_STATS_RXMAXBYTE, "RxMaxByte"), - MIB_DESC(1, AR40XX_STATS_RXTOOLONG, "RxTooLong"), - MIB_DESC(2, AR40XX_STATS_RXGOODBYTE, "RxGoodByte"), - MIB_DESC(2, AR40XX_STATS_RXBADBYTE, "RxBadByte"), - MIB_DESC(1, AR40XX_STATS_RXOVERFLOW, "RxOverFlow"), - MIB_DESC(1, AR40XX_STATS_FILTERED, "Filtered"), - MIB_DESC(1, AR40XX_STATS_TXBROAD, "TxBroad"), - MIB_DESC(1, AR40XX_STATS_TXPAUSE, "TxPause"), - MIB_DESC(1, AR40XX_STATS_TXMULTI, "TxMulti"), - MIB_DESC(1, AR40XX_STATS_TXUNDERRUN, "TxUnderRun"), - MIB_DESC(1, AR40XX_STATS_TX64BYTE, "Tx64Byte"), - MIB_DESC(1, AR40XX_STATS_TX128BYTE, "Tx128Byte"), - MIB_DESC(1, AR40XX_STATS_TX256BYTE, "Tx256Byte"), - MIB_DESC(1, AR40XX_STATS_TX512BYTE, "Tx512Byte"), - MIB_DESC(1, AR40XX_STATS_TX1024BYTE, "Tx1024Byte"), - MIB_DESC(1, AR40XX_STATS_TX1518BYTE, "Tx1518Byte"), - MIB_DESC(1, AR40XX_STATS_TXMAXBYTE, "TxMaxByte"), - MIB_DESC(1, AR40XX_STATS_TXOVERSIZE, "TxOverSize"), - MIB_DESC(2, AR40XX_STATS_TXBYTE, "TxByte"), - MIB_DESC(1, AR40XX_STATS_TXCOLLISION, "TxCollision"), - MIB_DESC(1, AR40XX_STATS_TXABORTCOL, "TxAbortCol"), - MIB_DESC(1, AR40XX_STATS_TXMULTICOL, "TxMultiCol"), - MIB_DESC(1, AR40XX_STATS_TXSINGLECOL, "TxSingleCol"), - MIB_DESC(1, AR40XX_STATS_TXEXCDEFER, "TxExcDefer"), - MIB_DESC(1, AR40XX_STATS_TXDEFER, "TxDefer"), - MIB_DESC(1, AR40XX_STATS_TXLATECOL, "TxLateCol"), -}; - -static u32 -ar40xx_read(struct ar40xx_priv *priv, int reg) -{ - return readl(priv->hw_addr + reg); -} - -static u32 -ar40xx_psgmii_read(struct ar40xx_priv *priv, int reg) -{ - return readl(priv->psgmii_hw_addr + reg); -} - -static void -ar40xx_write(struct ar40xx_priv *priv, int reg, u32 val) -{ - writel(val, priv->hw_addr + reg); -} - -static u32 -ar40xx_rmw(struct ar40xx_priv *priv, int reg, u32 mask, u32 val) -{ - u32 ret; - - ret = ar40xx_read(priv, reg); - ret &= ~mask; - ret |= val; - ar40xx_write(priv, reg, ret); - return ret; -} - -static void -ar40xx_psgmii_write(struct ar40xx_priv *priv, int reg, u32 val) -{ - writel(val, priv->psgmii_hw_addr + reg); -} - -static void -ar40xx_phy_dbg_write(struct ar40xx_priv *priv, int phy_addr, - u16 dbg_addr, u16 dbg_data) -{ - struct mii_bus *bus = priv->mii_bus; - - mutex_lock(&bus->mdio_lock); - bus->write(bus, phy_addr, AR40XX_MII_ATH_DBG_ADDR, dbg_addr); - bus->write(bus, phy_addr, AR40XX_MII_ATH_DBG_DATA, dbg_data); - mutex_unlock(&bus->mdio_lock); -} - -static void -ar40xx_phy_dbg_read(struct ar40xx_priv *priv, int phy_addr, - u16 dbg_addr, u16 *dbg_data) -{ - struct mii_bus *bus = priv->mii_bus; - - mutex_lock(&bus->mdio_lock); - bus->write(bus, phy_addr, AR40XX_MII_ATH_DBG_ADDR, dbg_addr); - *dbg_data = bus->read(bus, phy_addr, AR40XX_MII_ATH_DBG_DATA); - mutex_unlock(&bus->mdio_lock); -} - -static void -ar40xx_phy_mmd_write(struct ar40xx_priv *priv, u32 phy_id, - u16 mmd_num, u16 reg_id, u16 reg_val) -{ - struct mii_bus *bus = priv->mii_bus; - - mutex_lock(&bus->mdio_lock); - bus->write(bus, phy_id, - AR40XX_MII_ATH_MMD_ADDR, mmd_num); - bus->write(bus, phy_id, - AR40XX_MII_ATH_MMD_DATA, reg_id); - bus->write(bus, phy_id, - AR40XX_MII_ATH_MMD_ADDR, - 0x4000 | mmd_num); - bus->write(bus, phy_id, - AR40XX_MII_ATH_MMD_DATA, reg_val); - mutex_unlock(&bus->mdio_lock); -} - -static u16 -ar40xx_phy_mmd_read(struct ar40xx_priv *priv, u32 phy_id, - u16 mmd_num, u16 reg_id) -{ - u16 value; - struct mii_bus *bus = priv->mii_bus; - - mutex_lock(&bus->mdio_lock); - bus->write(bus, phy_id, - AR40XX_MII_ATH_MMD_ADDR, mmd_num); - bus->write(bus, phy_id, - AR40XX_MII_ATH_MMD_DATA, reg_id); - bus->write(bus, phy_id, - AR40XX_MII_ATH_MMD_ADDR, - 0x4000 | mmd_num); - value = bus->read(bus, phy_id, AR40XX_MII_ATH_MMD_DATA); - mutex_unlock(&bus->mdio_lock); - return value; -} - -/* Start of swconfig support */ - -static void -ar40xx_phy_poll_reset(struct ar40xx_priv *priv) -{ - u32 i, in_reset, retries = 500; - struct mii_bus *bus = priv->mii_bus; - - /* Assume RESET was recently issued to some or all of the phys */ - in_reset = GENMASK(AR40XX_NUM_PHYS - 1, 0); - - while (retries--) { - /* 1ms should be plenty of time. - * 802.3 spec allows for a max wait time of 500ms - */ - usleep_range(1000, 2000); - - for (i = 0; i < AR40XX_NUM_PHYS; i++) { - int val; - - /* skip devices which have completed reset */ - if (!(in_reset & BIT(i))) - continue; - - val = mdiobus_read(bus, i, MII_BMCR); - if (val < 0) - continue; - - /* mark when phy is no longer in reset state */ - if (!(val & BMCR_RESET)) - in_reset &= ~BIT(i); - } - - if (!in_reset) - return; - } - - dev_warn(&bus->dev, "Failed to reset all phys! (in_reset: 0x%x)\n", - in_reset); -} - -static void -ar40xx_phy_init(struct ar40xx_priv *priv) -{ - int i; - struct mii_bus *bus; - u16 val; - - bus = priv->mii_bus; - for (i = 0; i < AR40XX_NUM_PORTS - 1; i++) { - ar40xx_phy_dbg_read(priv, i, AR40XX_PHY_DEBUG_0, &val); - val &= ~AR40XX_PHY_MANU_CTRL_EN; - ar40xx_phy_dbg_write(priv, i, AR40XX_PHY_DEBUG_0, val); - mdiobus_write(bus, i, - MII_ADVERTISE, ADVERTISE_ALL | - ADVERTISE_PAUSE_CAP | - ADVERTISE_PAUSE_ASYM); - mdiobus_write(bus, i, MII_CTRL1000, ADVERTISE_1000FULL); - mdiobus_write(bus, i, MII_BMCR, BMCR_RESET | BMCR_ANENABLE); - } - - ar40xx_phy_poll_reset(priv); -} - -static void -ar40xx_port_phy_linkdown(struct ar40xx_priv *priv) -{ - struct mii_bus *bus; - int i; - u16 val; - - bus = priv->mii_bus; - for (i = 0; i < AR40XX_NUM_PORTS - 1; i++) { - mdiobus_write(bus, i, MII_CTRL1000, 0); - mdiobus_write(bus, i, MII_ADVERTISE, 0); - mdiobus_write(bus, i, MII_BMCR, BMCR_RESET | BMCR_ANENABLE); - ar40xx_phy_dbg_read(priv, i, AR40XX_PHY_DEBUG_0, &val); - val |= AR40XX_PHY_MANU_CTRL_EN; - ar40xx_phy_dbg_write(priv, i, AR40XX_PHY_DEBUG_0, val); - /* disable transmit */ - ar40xx_phy_dbg_read(priv, i, AR40XX_PHY_DEBUG_2, &val); - val &= 0xf00f; - ar40xx_phy_dbg_write(priv, i, AR40XX_PHY_DEBUG_2, val); - } -} - -static void -ar40xx_set_mirror_regs(struct ar40xx_priv *priv) -{ - int port; - - /* reset all mirror registers */ - ar40xx_rmw(priv, AR40XX_REG_FWD_CTRL0, - AR40XX_FWD_CTRL0_MIRROR_PORT, - (0xF << AR40XX_FWD_CTRL0_MIRROR_PORT_S)); - for (port = 0; port < AR40XX_NUM_PORTS; port++) { - ar40xx_rmw(priv, AR40XX_REG_PORT_LOOKUP(port), - AR40XX_PORT_LOOKUP_ING_MIRROR_EN, 0); - - ar40xx_rmw(priv, AR40XX_REG_PORT_HOL_CTRL1(port), - AR40XX_PORT_HOL_CTRL1_EG_MIRROR_EN, 0); - } - - /* now enable mirroring if necessary */ - if (priv->source_port >= AR40XX_NUM_PORTS || - priv->monitor_port >= AR40XX_NUM_PORTS || - priv->source_port == priv->monitor_port) { - return; - } - - ar40xx_rmw(priv, AR40XX_REG_FWD_CTRL0, - AR40XX_FWD_CTRL0_MIRROR_PORT, - (priv->monitor_port << AR40XX_FWD_CTRL0_MIRROR_PORT_S)); - - if (priv->mirror_rx) - ar40xx_rmw(priv, AR40XX_REG_PORT_LOOKUP(priv->source_port), 0, - AR40XX_PORT_LOOKUP_ING_MIRROR_EN); - - if (priv->mirror_tx) - ar40xx_rmw(priv, AR40XX_REG_PORT_HOL_CTRL1(priv->source_port), - 0, AR40XX_PORT_HOL_CTRL1_EG_MIRROR_EN); -} - -static int -ar40xx_sw_get_ports(struct switch_dev *dev, struct switch_val *val) -{ - struct ar40xx_priv *priv = swdev_to_ar40xx(dev); - u8 ports = priv->vlan_table[val->port_vlan]; - int i; - - val->len = 0; - for (i = 0; i < dev->ports; i++) { - struct switch_port *p; - - if (!(ports & BIT(i))) - continue; - - p = &val->value.ports[val->len++]; - p->id = i; - if ((priv->vlan_tagged & BIT(i)) || - (priv->pvid[i] != val->port_vlan)) - p->flags = BIT(SWITCH_PORT_FLAG_TAGGED); - else - p->flags = 0; - } - return 0; -} - -static int -ar40xx_sw_set_ports(struct switch_dev *dev, struct switch_val *val) -{ - struct ar40xx_priv *priv = swdev_to_ar40xx(dev); - u8 *vt = &priv->vlan_table[val->port_vlan]; - int i; - - *vt = 0; - for (i = 0; i < val->len; i++) { - struct switch_port *p = &val->value.ports[i]; - - if (p->flags & BIT(SWITCH_PORT_FLAG_TAGGED)) { - if (val->port_vlan == priv->pvid[p->id]) - priv->vlan_tagged |= BIT(p->id); - } else { - priv->vlan_tagged &= ~BIT(p->id); - priv->pvid[p->id] = val->port_vlan; - } - - *vt |= BIT(p->id); - } - return 0; -} - -static int -ar40xx_reg_wait(struct ar40xx_priv *priv, u32 reg, u32 mask, u32 val, - unsigned timeout) -{ - int i; - - for (i = 0; i < timeout; i++) { - u32 t; - - t = ar40xx_read(priv, reg); - if ((t & mask) == val) - return 0; - - usleep_range(1000, 2000); - } - - return -ETIMEDOUT; -} - -static int -ar40xx_mib_op(struct ar40xx_priv *priv, u32 op) -{ - int ret; - - lockdep_assert_held(&priv->mib_lock); - - /* Capture the hardware statistics for all ports */ - ar40xx_rmw(priv, AR40XX_REG_MIB_FUNC, - AR40XX_MIB_FUNC, (op << AR40XX_MIB_FUNC_S)); - - /* Wait for the capturing to complete. */ - ret = ar40xx_reg_wait(priv, AR40XX_REG_MIB_FUNC, - AR40XX_MIB_BUSY, 0, 10); - - return ret; -} - -static void -ar40xx_mib_fetch_port_stat(struct ar40xx_priv *priv, int port, bool flush) -{ - unsigned int base; - u64 *mib_stats; - int i; - u32 num_mibs = ARRAY_SIZE(ar40xx_mibs); - - WARN_ON(port >= priv->dev.ports); - - lockdep_assert_held(&priv->mib_lock); - - base = AR40XX_REG_PORT_STATS_START + - AR40XX_REG_PORT_STATS_LEN * port; - - mib_stats = &priv->mib_stats[port * num_mibs]; - if (flush) { - u32 len; - - len = num_mibs * sizeof(*mib_stats); - memset(mib_stats, 0, len); - return; - } - for (i = 0; i < num_mibs; i++) { - const struct ar40xx_mib_desc *mib; - u64 t; - - mib = &ar40xx_mibs[i]; - t = ar40xx_read(priv, base + mib->offset); - if (mib->size == 2) { - u64 hi; - - hi = ar40xx_read(priv, base + mib->offset + 4); - t |= hi << 32; - } - - mib_stats[i] += t; - } -} - -static int -ar40xx_mib_capture(struct ar40xx_priv *priv) -{ - return ar40xx_mib_op(priv, AR40XX_MIB_FUNC_CAPTURE); -} - -static int -ar40xx_mib_flush(struct ar40xx_priv *priv) -{ - return ar40xx_mib_op(priv, AR40XX_MIB_FUNC_FLUSH); -} - -static int -ar40xx_sw_set_reset_mibs(struct switch_dev *dev, - const struct switch_attr *attr, - struct switch_val *val) -{ - struct ar40xx_priv *priv = swdev_to_ar40xx(dev); - unsigned int len; - int ret; - u32 num_mibs = ARRAY_SIZE(ar40xx_mibs); - - mutex_lock(&priv->mib_lock); - - len = priv->dev.ports * num_mibs * sizeof(*priv->mib_stats); - memset(priv->mib_stats, 0, len); - ret = ar40xx_mib_flush(priv); - - mutex_unlock(&priv->mib_lock); - return ret; -} - -static int -ar40xx_sw_set_vlan(struct switch_dev *dev, const struct switch_attr *attr, - struct switch_val *val) -{ - struct ar40xx_priv *priv = swdev_to_ar40xx(dev); - - priv->vlan = !!val->value.i; - return 0; -} - -static int -ar40xx_sw_get_vlan(struct switch_dev *dev, const struct switch_attr *attr, - struct switch_val *val) -{ - struct ar40xx_priv *priv = swdev_to_ar40xx(dev); - - val->value.i = priv->vlan; - return 0; -} - -static int -ar40xx_sw_set_mirror_rx_enable(struct switch_dev *dev, - const struct switch_attr *attr, - struct switch_val *val) -{ - struct ar40xx_priv *priv = swdev_to_ar40xx(dev); - - mutex_lock(&priv->reg_mutex); - priv->mirror_rx = !!val->value.i; - ar40xx_set_mirror_regs(priv); - mutex_unlock(&priv->reg_mutex); - - return 0; -} - -static int -ar40xx_sw_get_mirror_rx_enable(struct switch_dev *dev, - const struct switch_attr *attr, - struct switch_val *val) -{ - struct ar40xx_priv *priv = swdev_to_ar40xx(dev); - - mutex_lock(&priv->reg_mutex); - val->value.i = priv->mirror_rx; - mutex_unlock(&priv->reg_mutex); - return 0; -} - -static int -ar40xx_sw_set_mirror_tx_enable(struct switch_dev *dev, - const struct switch_attr *attr, - struct switch_val *val) -{ - struct ar40xx_priv *priv = swdev_to_ar40xx(dev); - - mutex_lock(&priv->reg_mutex); - priv->mirror_tx = !!val->value.i; - ar40xx_set_mirror_regs(priv); - mutex_unlock(&priv->reg_mutex); - - return 0; -} - -static int -ar40xx_sw_get_mirror_tx_enable(struct switch_dev *dev, - const struct switch_attr *attr, - struct switch_val *val) -{ - struct ar40xx_priv *priv = swdev_to_ar40xx(dev); - - mutex_lock(&priv->reg_mutex); - val->value.i = priv->mirror_tx; - mutex_unlock(&priv->reg_mutex); - return 0; -} - -static int -ar40xx_sw_set_mirror_monitor_port(struct switch_dev *dev, - const struct switch_attr *attr, - struct switch_val *val) -{ - struct ar40xx_priv *priv = swdev_to_ar40xx(dev); - - mutex_lock(&priv->reg_mutex); - priv->monitor_port = val->value.i; - ar40xx_set_mirror_regs(priv); - mutex_unlock(&priv->reg_mutex); - - return 0; -} - -static int -ar40xx_sw_get_mirror_monitor_port(struct switch_dev *dev, - const struct switch_attr *attr, - struct switch_val *val) -{ - struct ar40xx_priv *priv = swdev_to_ar40xx(dev); - - mutex_lock(&priv->reg_mutex); - val->value.i = priv->monitor_port; - mutex_unlock(&priv->reg_mutex); - return 0; -} - -static int -ar40xx_sw_set_mirror_source_port(struct switch_dev *dev, - const struct switch_attr *attr, - struct switch_val *val) -{ - struct ar40xx_priv *priv = swdev_to_ar40xx(dev); - - mutex_lock(&priv->reg_mutex); - priv->source_port = val->value.i; - ar40xx_set_mirror_regs(priv); - mutex_unlock(&priv->reg_mutex); - - return 0; -} - -static int -ar40xx_sw_get_mirror_source_port(struct switch_dev *dev, - const struct switch_attr *attr, - struct switch_val *val) -{ - struct ar40xx_priv *priv = swdev_to_ar40xx(dev); - - mutex_lock(&priv->reg_mutex); - val->value.i = priv->source_port; - mutex_unlock(&priv->reg_mutex); - return 0; -} - -static int -ar40xx_sw_set_linkdown(struct switch_dev *dev, - const struct switch_attr *attr, - struct switch_val *val) -{ - struct ar40xx_priv *priv = swdev_to_ar40xx(dev); - - if (val->value.i == 1) - ar40xx_port_phy_linkdown(priv); - else - ar40xx_phy_init(priv); - - return 0; -} - -static int -ar40xx_sw_set_port_reset_mib(struct switch_dev *dev, - const struct switch_attr *attr, - struct switch_val *val) -{ - struct ar40xx_priv *priv = swdev_to_ar40xx(dev); - int port; - int ret; - - port = val->port_vlan; - if (port >= dev->ports) - return -EINVAL; - - mutex_lock(&priv->mib_lock); - ret = ar40xx_mib_capture(priv); - if (ret) - goto unlock; - - ar40xx_mib_fetch_port_stat(priv, port, true); - -unlock: - mutex_unlock(&priv->mib_lock); - return ret; -} - -static int -ar40xx_sw_get_port_mib(struct switch_dev *dev, - const struct switch_attr *attr, - struct switch_val *val) -{ - struct ar40xx_priv *priv = swdev_to_ar40xx(dev); - u64 *mib_stats; - int port; - int ret; - char *buf = priv->buf; - int i, len = 0; - u32 num_mibs = ARRAY_SIZE(ar40xx_mibs); - - port = val->port_vlan; - if (port >= dev->ports) - return -EINVAL; - - mutex_lock(&priv->mib_lock); - ret = ar40xx_mib_capture(priv); - if (ret) - goto unlock; - - ar40xx_mib_fetch_port_stat(priv, port, false); - - len += snprintf(buf + len, sizeof(priv->buf) - len, - "Port %d MIB counters\n", - port); - - mib_stats = &priv->mib_stats[port * num_mibs]; - for (i = 0; i < num_mibs; i++) - len += snprintf(buf + len, sizeof(priv->buf) - len, - "%-12s: %llu\n", - ar40xx_mibs[i].name, - mib_stats[i]); - - val->value.s = buf; - val->len = len; - -unlock: - mutex_unlock(&priv->mib_lock); - return ret; -} - -static int -ar40xx_sw_set_vid(struct switch_dev *dev, const struct switch_attr *attr, - struct switch_val *val) -{ - struct ar40xx_priv *priv = swdev_to_ar40xx(dev); - - priv->vlan_id[val->port_vlan] = val->value.i; - return 0; -} - -static int -ar40xx_sw_get_vid(struct switch_dev *dev, const struct switch_attr *attr, - struct switch_val *val) -{ - struct ar40xx_priv *priv = swdev_to_ar40xx(dev); - - val->value.i = priv->vlan_id[val->port_vlan]; - return 0; -} - -static int -ar40xx_sw_get_pvid(struct switch_dev *dev, int port, int *vlan) -{ - struct ar40xx_priv *priv = swdev_to_ar40xx(dev); - *vlan = priv->pvid[port]; - return 0; -} - -static int -ar40xx_sw_set_pvid(struct switch_dev *dev, int port, int vlan) -{ - struct ar40xx_priv *priv = swdev_to_ar40xx(dev); - - /* make sure no invalid PVIDs get set */ - if (vlan >= dev->vlans) - return -EINVAL; - - priv->pvid[port] = vlan; - return 0; -} - -static void -ar40xx_read_port_link(struct ar40xx_priv *priv, int port, - struct switch_port_link *link) -{ - u32 status; - u32 speed; - - memset(link, 0, sizeof(*link)); - - status = ar40xx_read(priv, AR40XX_REG_PORT_STATUS(port)); - - link->aneg = !!(status & AR40XX_PORT_AUTO_LINK_EN); - if (link->aneg || (port != AR40XX_PORT_CPU)) - link->link = !!(status & AR40XX_PORT_STATUS_LINK_UP); - else - link->link = true; - - if (!link->link) - return; - - link->duplex = !!(status & AR40XX_PORT_DUPLEX); - link->tx_flow = !!(status & AR40XX_PORT_STATUS_TXFLOW); - link->rx_flow = !!(status & AR40XX_PORT_STATUS_RXFLOW); - - speed = (status & AR40XX_PORT_SPEED) >> - AR40XX_PORT_STATUS_SPEED_S; - - switch (speed) { - case AR40XX_PORT_SPEED_10M: - link->speed = SWITCH_PORT_SPEED_10; - break; - case AR40XX_PORT_SPEED_100M: - link->speed = SWITCH_PORT_SPEED_100; - break; - case AR40XX_PORT_SPEED_1000M: - link->speed = SWITCH_PORT_SPEED_1000; - break; - default: - link->speed = SWITCH_PORT_SPEED_UNKNOWN; - break; - } -} - -static int -ar40xx_sw_get_port_link(struct switch_dev *dev, int port, - struct switch_port_link *link) -{ - struct ar40xx_priv *priv = swdev_to_ar40xx(dev); - - ar40xx_read_port_link(priv, port, link); - return 0; -} - -static const struct switch_attr ar40xx_sw_attr_globals[] = { - { - .type = SWITCH_TYPE_INT, - .name = "enable_vlan", - .description = "Enable VLAN mode", - .set = ar40xx_sw_set_vlan, - .get = ar40xx_sw_get_vlan, - .max = 1 - }, - { - .type = SWITCH_TYPE_NOVAL, - .name = "reset_mibs", - .description = "Reset all MIB counters", - .set = ar40xx_sw_set_reset_mibs, - }, - { - .type = SWITCH_TYPE_INT, - .name = "enable_mirror_rx", - .description = "Enable mirroring of RX packets", - .set = ar40xx_sw_set_mirror_rx_enable, - .get = ar40xx_sw_get_mirror_rx_enable, - .max = 1 - }, - { - .type = SWITCH_TYPE_INT, - .name = "enable_mirror_tx", - .description = "Enable mirroring of TX packets", - .set = ar40xx_sw_set_mirror_tx_enable, - .get = ar40xx_sw_get_mirror_tx_enable, - .max = 1 - }, - { - .type = SWITCH_TYPE_INT, - .name = "mirror_monitor_port", - .description = "Mirror monitor port", - .set = ar40xx_sw_set_mirror_monitor_port, - .get = ar40xx_sw_get_mirror_monitor_port, - .max = AR40XX_NUM_PORTS - 1 - }, - { - .type = SWITCH_TYPE_INT, - .name = "mirror_source_port", - .description = "Mirror source port", - .set = ar40xx_sw_set_mirror_source_port, - .get = ar40xx_sw_get_mirror_source_port, - .max = AR40XX_NUM_PORTS - 1 - }, - { - .type = SWITCH_TYPE_INT, - .name = "linkdown", - .description = "Link down all the PHYs", - .set = ar40xx_sw_set_linkdown, - .max = 1 - }, -}; - -static const struct switch_attr ar40xx_sw_attr_port[] = { - { - .type = SWITCH_TYPE_NOVAL, - .name = "reset_mib", - .description = "Reset single port MIB counters", - .set = ar40xx_sw_set_port_reset_mib, - }, - { - .type = SWITCH_TYPE_STRING, - .name = "mib", - .description = "Get port's MIB counters", - .set = NULL, - .get = ar40xx_sw_get_port_mib, - }, -}; - -const struct switch_attr ar40xx_sw_attr_vlan[] = { - { - .type = SWITCH_TYPE_INT, - .name = "vid", - .description = "VLAN ID (0-4094)", - .set = ar40xx_sw_set_vid, - .get = ar40xx_sw_get_vid, - .max = 4094, - }, -}; - -/* End of swconfig support */ - -static int -ar40xx_wait_bit(struct ar40xx_priv *priv, int reg, u32 mask, u32 val) -{ - int timeout = 20; - u32 t; - - while (1) { - t = ar40xx_read(priv, reg); - if ((t & mask) == val) - return 0; - - if (timeout-- <= 0) - break; - - usleep_range(10, 20); - } - - pr_err("ar40xx: timeout for reg %08x: %08x & %08x != %08x\n", - (unsigned int)reg, t, mask, val); - return -ETIMEDOUT; -} - -static int -ar40xx_atu_flush(struct ar40xx_priv *priv) -{ - int ret; - - ret = ar40xx_wait_bit(priv, AR40XX_REG_ATU_FUNC, - AR40XX_ATU_FUNC_BUSY, 0); - if (!ret) - ar40xx_write(priv, AR40XX_REG_ATU_FUNC, - AR40XX_ATU_FUNC_OP_FLUSH | - AR40XX_ATU_FUNC_BUSY); - - return ret; -} - -static void -ar40xx_ess_reset(struct ar40xx_priv *priv) -{ - reset_control_assert(priv->ess_rst); - mdelay(10); - reset_control_deassert(priv->ess_rst); - /* Waiting for all inner tables init done. - * It cost 5~10ms. - */ - mdelay(10); - - pr_info("ESS reset ok!\n"); -} - -/* Start of psgmii self test */ - -static void -ar40xx_malibu_psgmii_ess_reset(struct ar40xx_priv *priv) -{ - u32 n; - struct mii_bus *bus = priv->mii_bus; - /* reset phy psgmii */ - /* fix phy psgmii RX 20bit */ - mdiobus_write(bus, 5, 0x0, 0x005b); - /* reset phy psgmii */ - mdiobus_write(bus, 5, 0x0, 0x001b); - /* release reset phy psgmii */ - mdiobus_write(bus, 5, 0x0, 0x005b); - - for (n = 0; n < AR40XX_PSGMII_CALB_NUM; n++) { - u16 status; - - status = ar40xx_phy_mmd_read(priv, 5, 1, 0x28); - if (status & BIT(0)) - break; - /* Polling interval to check PSGMII PLL in malibu is ready - * the worst time is 8.67ms - * for 25MHz reference clock - * [512+(128+2048)*49]*80ns+100us - */ - mdelay(2); - } - - /*check malibu psgmii calibration done end..*/ - - /*freeze phy psgmii RX CDR*/ - mdiobus_write(bus, 5, 0x1a, 0x2230); - - ar40xx_ess_reset(priv); - - /*check psgmii calibration done start*/ - for (n = 0; n < AR40XX_PSGMII_CALB_NUM; n++) { - u32 status; - - status = ar40xx_psgmii_read(priv, 0xa0); - if (status & BIT(0)) - break; - /* Polling interval to check PSGMII PLL in ESS is ready */ - mdelay(2); - } - - /* check dakota psgmii calibration done end..*/ - - /* relesae phy psgmii RX CDR */ - mdiobus_write(bus, 5, 0x1a, 0x3230); - /* release phy psgmii RX 20bit */ - mdiobus_write(bus, 5, 0x0, 0x005f); -} - -static void -ar40xx_psgmii_single_phy_testing(struct ar40xx_priv *priv, int phy) -{ - int j; - u32 tx_ok, tx_error; - u32 rx_ok, rx_error; - u32 tx_ok_high16; - u32 rx_ok_high16; - u32 tx_all_ok, rx_all_ok; - struct mii_bus *bus = priv->mii_bus; - - mdiobus_write(bus, phy, 0x0, 0x9000); - mdiobus_write(bus, phy, 0x0, 0x4140); - - for (j = 0; j < AR40XX_PSGMII_CALB_NUM; j++) { - u16 status; - - status = mdiobus_read(bus, phy, 0x11); - if (status & AR40XX_PHY_SPEC_STATUS_LINK) - break; - /* the polling interval to check if the PHY link up or not - * maxwait_timer: 750 ms +/-10 ms - * minwait_timer : 1 us +/- 0.1us - * time resides in minwait_timer ~ maxwait_timer - * see IEEE 802.3 section 40.4.5.2 - */ - mdelay(8); - } - - /* enable check */ - ar40xx_phy_mmd_write(priv, phy, 7, 0x8029, 0x0000); - ar40xx_phy_mmd_write(priv, phy, 7, 0x8029, 0x0003); - - /* start traffic */ - ar40xx_phy_mmd_write(priv, phy, 7, 0x8020, 0xa000); - /* wait for all traffic end - * 4096(pkt num)*1524(size)*8ns(125MHz)=49.9ms - */ - mdelay(50); - - /* check counter */ - tx_ok = ar40xx_phy_mmd_read(priv, phy, 7, 0x802e); - tx_ok_high16 = ar40xx_phy_mmd_read(priv, phy, 7, 0x802d); - tx_error = ar40xx_phy_mmd_read(priv, phy, 7, 0x802f); - rx_ok = ar40xx_phy_mmd_read(priv, phy, 7, 0x802b); - rx_ok_high16 = ar40xx_phy_mmd_read(priv, phy, 7, 0x802a); - rx_error = ar40xx_phy_mmd_read(priv, phy, 7, 0x802c); - tx_all_ok = tx_ok + (tx_ok_high16 << 16); - rx_all_ok = rx_ok + (rx_ok_high16 << 16); - if (tx_all_ok == 0x1000 && tx_error == 0) { - /* success */ - priv->phy_t_status &= (~BIT(phy)); - } else { - pr_info("PHY %d single test PSGMII issue happen!\n", phy); - priv->phy_t_status |= BIT(phy); - } - - mdiobus_write(bus, phy, 0x0, 0x1840); -} - -static void -ar40xx_psgmii_all_phy_testing(struct ar40xx_priv *priv) -{ - int phy, j; - struct mii_bus *bus = priv->mii_bus; - - mdiobus_write(bus, 0x1f, 0x0, 0x9000); - mdiobus_write(bus, 0x1f, 0x0, 0x4140); - - for (j = 0; j < AR40XX_PSGMII_CALB_NUM; j++) { - for (phy = 0; phy < AR40XX_NUM_PORTS - 1; phy++) { - u16 status; - - status = mdiobus_read(bus, phy, 0x11); - if (!(status & BIT(10))) - break; - } - - if (phy >= (AR40XX_NUM_PORTS - 1)) - break; - /* The polling interva to check if the PHY link up or not */ - mdelay(8); - } - /* enable check */ - ar40xx_phy_mmd_write(priv, 0x1f, 7, 0x8029, 0x0000); - ar40xx_phy_mmd_write(priv, 0x1f, 7, 0x8029, 0x0003); - - /* start traffic */ - ar40xx_phy_mmd_write(priv, 0x1f, 7, 0x8020, 0xa000); - /* wait for all traffic end - * 4096(pkt num)*1524(size)*8ns(125MHz)=49.9ms - */ - mdelay(50); - - for (phy = 0; phy < AR40XX_NUM_PORTS - 1; phy++) { - u32 tx_ok, tx_error; - u32 rx_ok, rx_error; - u32 tx_ok_high16; - u32 rx_ok_high16; - u32 tx_all_ok, rx_all_ok; - - /* check counter */ - tx_ok = ar40xx_phy_mmd_read(priv, phy, 7, 0x802e); - tx_ok_high16 = ar40xx_phy_mmd_read(priv, phy, 7, 0x802d); - tx_error = ar40xx_phy_mmd_read(priv, phy, 7, 0x802f); - rx_ok = ar40xx_phy_mmd_read(priv, phy, 7, 0x802b); - rx_ok_high16 = ar40xx_phy_mmd_read(priv, phy, 7, 0x802a); - rx_error = ar40xx_phy_mmd_read(priv, phy, 7, 0x802c); - tx_all_ok = tx_ok + (tx_ok_high16<<16); - rx_all_ok = rx_ok + (rx_ok_high16<<16); - if (tx_all_ok == 0x1000 && tx_error == 0) { - /* success */ - priv->phy_t_status &= ~BIT(phy + 8); - } else { - pr_info("PHY%d test see issue!\n", phy); - priv->phy_t_status |= BIT(phy + 8); - } - } - - pr_debug("PHY all test 0x%x \r\n", priv->phy_t_status); -} - -void -ar40xx_psgmii_self_test(struct ar40xx_priv *priv) -{ - u32 i, phy; - struct mii_bus *bus = priv->mii_bus; - - ar40xx_malibu_psgmii_ess_reset(priv); - - /* switch to access MII reg for copper */ - mdiobus_write(bus, 4, 0x1f, 0x8500); - for (phy = 0; phy < AR40XX_NUM_PORTS - 1; phy++) { - /*enable phy mdio broadcast write*/ - ar40xx_phy_mmd_write(priv, phy, 7, 0x8028, 0x801f); - } - /* force no link by power down */ - mdiobus_write(bus, 0x1f, 0x0, 0x1840); - /*packet number*/ - ar40xx_phy_mmd_write(priv, 0x1f, 7, 0x8021, 0x1000); - ar40xx_phy_mmd_write(priv, 0x1f, 7, 0x8062, 0x05e0); - - /*fix mdi status */ - mdiobus_write(bus, 0x1f, 0x10, 0x6800); - for (i = 0; i < AR40XX_PSGMII_CALB_NUM; i++) { - priv->phy_t_status = 0; - - for (phy = 0; phy < AR40XX_NUM_PORTS - 1; phy++) { - ar40xx_rmw(priv, AR40XX_REG_PORT_LOOKUP(phy + 1), - AR40XX_PORT_LOOKUP_LOOPBACK, - AR40XX_PORT_LOOKUP_LOOPBACK); - } - - for (phy = 0; phy < AR40XX_NUM_PORTS - 1; phy++) - ar40xx_psgmii_single_phy_testing(priv, phy); - - ar40xx_psgmii_all_phy_testing(priv); - - if (priv->phy_t_status) - ar40xx_malibu_psgmii_ess_reset(priv); - else - break; - } - - if (i >= AR40XX_PSGMII_CALB_NUM) - pr_info("PSGMII cannot recover\n"); - else - pr_debug("PSGMII recovered after %d times reset\n", i); - - /* configuration recover */ - /* packet number */ - ar40xx_phy_mmd_write(priv, 0x1f, 7, 0x8021, 0x0); - /* disable check */ - ar40xx_phy_mmd_write(priv, 0x1f, 7, 0x8029, 0x0); - /* disable traffic */ - ar40xx_phy_mmd_write(priv, 0x1f, 7, 0x8020, 0x0); -} - -void -ar40xx_psgmii_self_test_clean(struct ar40xx_priv *priv) -{ - int phy; - struct mii_bus *bus = priv->mii_bus; - - /* disable phy internal loopback */ - mdiobus_write(bus, 0x1f, 0x10, 0x6860); - mdiobus_write(bus, 0x1f, 0x0, 0x9040); - - for (phy = 0; phy < AR40XX_NUM_PORTS - 1; phy++) { - /* disable mac loop back */ - ar40xx_rmw(priv, AR40XX_REG_PORT_LOOKUP(phy + 1), - AR40XX_PORT_LOOKUP_LOOPBACK, 0); - /* disable phy mdio broadcast write */ - ar40xx_phy_mmd_write(priv, phy, 7, 0x8028, 0x001f); - } - - /* clear fdb entry */ - ar40xx_atu_flush(priv); -} - -/* End of psgmii self test */ - -static void -ar40xx_mac_mode_init(struct ar40xx_priv *priv, u32 mode) -{ - if (mode == PORT_WRAPPER_PSGMII) { - ar40xx_psgmii_write(priv, AR40XX_PSGMII_MODE_CONTROL, 0x2200); - ar40xx_psgmii_write(priv, AR40XX_PSGMIIPHY_TX_CONTROL, 0x8380); - } -} - -static -int ar40xx_cpuport_setup(struct ar40xx_priv *priv) -{ - u32 t; - - t = AR40XX_PORT_STATUS_TXFLOW | - AR40XX_PORT_STATUS_RXFLOW | - AR40XX_PORT_TXHALF_FLOW | - AR40XX_PORT_DUPLEX | - AR40XX_PORT_SPEED_1000M; - ar40xx_write(priv, AR40XX_REG_PORT_STATUS(0), t); - usleep_range(10, 20); - - t |= AR40XX_PORT_TX_EN | - AR40XX_PORT_RX_EN; - ar40xx_write(priv, AR40XX_REG_PORT_STATUS(0), t); - - return 0; -} - -static void -ar40xx_init_port(struct ar40xx_priv *priv, int port) -{ - u32 t; - - ar40xx_write(priv, AR40XX_REG_PORT_STATUS(port), 0); - - ar40xx_write(priv, AR40XX_REG_PORT_HEADER(port), 0); - - ar40xx_write(priv, AR40XX_REG_PORT_VLAN0(port), 0); - - t = AR40XX_PORT_VLAN1_OUT_MODE_UNTOUCH << AR40XX_PORT_VLAN1_OUT_MODE_S; - ar40xx_write(priv, AR40XX_REG_PORT_VLAN1(port), t); - - t = AR40XX_PORT_LOOKUP_LEARN; - t |= AR40XX_PORT_STATE_FORWARD << AR40XX_PORT_LOOKUP_STATE_S; - ar40xx_write(priv, AR40XX_REG_PORT_LOOKUP(port), t); -} - -void -ar40xx_init_globals(struct ar40xx_priv *priv) -{ - u32 t; - - /* enable CPU port and disable mirror port */ - t = AR40XX_FWD_CTRL0_CPU_PORT_EN | - AR40XX_FWD_CTRL0_MIRROR_PORT; - ar40xx_write(priv, AR40XX_REG_FWD_CTRL0, t); - - /* forward multicast and broadcast frames to CPU */ - t = (AR40XX_PORTS_ALL << AR40XX_FWD_CTRL1_UC_FLOOD_S) | - (AR40XX_PORTS_ALL << AR40XX_FWD_CTRL1_MC_FLOOD_S) | - (AR40XX_PORTS_ALL << AR40XX_FWD_CTRL1_BC_FLOOD_S); - ar40xx_write(priv, AR40XX_REG_FWD_CTRL1, t); - - /* enable jumbo frames */ - ar40xx_rmw(priv, AR40XX_REG_MAX_FRAME_SIZE, - AR40XX_MAX_FRAME_SIZE_MTU, 9018 + 8 + 2); - - /* Enable MIB counters */ - ar40xx_rmw(priv, AR40XX_REG_MODULE_EN, 0, - AR40XX_MODULE_EN_MIB); - - /* Disable AZ */ - ar40xx_write(priv, AR40XX_REG_EEE_CTRL, 0); - - /* set flowctrl thershold for cpu port */ - t = (AR40XX_PORT0_FC_THRESH_ON_DFLT << 16) | - AR40XX_PORT0_FC_THRESH_OFF_DFLT; - ar40xx_write(priv, AR40XX_REG_PORT_FLOWCTRL_THRESH(0), t); -} - -static int -ar40xx_hw_init(struct ar40xx_priv *priv) -{ - u32 i; - - ar40xx_ess_reset(priv); - - if (!priv->mii_bus) - return -1; - - ar40xx_psgmii_self_test(priv); - ar40xx_psgmii_self_test_clean(priv); - - ar40xx_mac_mode_init(priv, priv->mac_mode); - - for (i = 0; i < priv->dev.ports; i++) - ar40xx_init_port(priv, i); - - ar40xx_init_globals(priv); - - return 0; -} - -/* Start of qm error WAR */ - -static -int ar40xx_force_1g_full(struct ar40xx_priv *priv, u32 port_id) -{ - u32 reg; - - if (port_id < 0 || port_id > 6) - return -1; - - reg = AR40XX_REG_PORT_STATUS(port_id); - return ar40xx_rmw(priv, reg, AR40XX_PORT_SPEED, - (AR40XX_PORT_SPEED_1000M | AR40XX_PORT_DUPLEX)); -} - -static -int ar40xx_get_qm_status(struct ar40xx_priv *priv, - u32 port_id, u32 *qm_buffer_err) -{ - u32 reg; - u32 qm_val; - - if (port_id < 1 || port_id > 5) { - *qm_buffer_err = 0; - return -1; - } - - if (port_id < 4) { - reg = AR40XX_REG_QM_PORT0_3_QNUM; - ar40xx_write(priv, AR40XX_REG_QM_DEBUG_ADDR, reg); - qm_val = ar40xx_read(priv, AR40XX_REG_QM_DEBUG_VALUE); - /* every 8 bits for each port */ - *qm_buffer_err = (qm_val >> (port_id * 8)) & 0xFF; - } else { - reg = AR40XX_REG_QM_PORT4_6_QNUM; - ar40xx_write(priv, AR40XX_REG_QM_DEBUG_ADDR, reg); - qm_val = ar40xx_read(priv, AR40XX_REG_QM_DEBUG_VALUE); - /* every 8 bits for each port */ - *qm_buffer_err = (qm_val >> ((port_id-4) * 8)) & 0xFF; - } - - return 0; -} - -static void -ar40xx_sw_mac_polling_task(struct ar40xx_priv *priv) -{ - static int task_count; - u32 i; - u32 reg, value; - u32 link, speed, duplex; - u32 qm_buffer_err; - u16 port_phy_status[AR40XX_NUM_PORTS]; - static u32 qm_err_cnt[AR40XX_NUM_PORTS] = {0, 0, 0, 0, 0, 0}; - static u32 link_cnt[AR40XX_NUM_PORTS] = {0, 0, 0, 0, 0, 0}; - struct mii_bus *bus = NULL; - - if (!priv || !priv->mii_bus) - return; - - bus = priv->mii_bus; - - ++task_count; - - for (i = 1; i < AR40XX_NUM_PORTS; ++i) { - port_phy_status[i] = - mdiobus_read(bus, i-1, AR40XX_PHY_SPEC_STATUS); - - speed = FIELD_GET(AR40XX_PHY_SPEC_STATUS_SPEED, - port_phy_status[i]); - link = FIELD_GET(AR40XX_PHY_SPEC_STATUS_LINK, - port_phy_status[i]); - duplex = FIELD_GET(AR40XX_PHY_SPEC_STATUS_DUPLEX, - port_phy_status[i]); - - if (link != priv->ar40xx_port_old_link[i]) { - ++link_cnt[i]; - /* Up --> Down */ - if ((priv->ar40xx_port_old_link[i] == - AR40XX_PORT_LINK_UP) && - (link == AR40XX_PORT_LINK_DOWN)) { - /* LINK_EN disable(MAC force mode)*/ - reg = AR40XX_REG_PORT_STATUS(i); - ar40xx_rmw(priv, reg, - AR40XX_PORT_AUTO_LINK_EN, 0); - - /* Check queue buffer */ - qm_err_cnt[i] = 0; - ar40xx_get_qm_status(priv, i, &qm_buffer_err); - if (qm_buffer_err) { - priv->ar40xx_port_qm_buf[i] = - AR40XX_QM_NOT_EMPTY; - } else { - u16 phy_val = 0; - - priv->ar40xx_port_qm_buf[i] = - AR40XX_QM_EMPTY; - ar40xx_force_1g_full(priv, i); - /* Ref:QCA8337 Datasheet,Clearing - * MENU_CTRL_EN prevents phy to - * stuck in 100BT mode when - * bringing up the link - */ - ar40xx_phy_dbg_read(priv, i-1, - AR40XX_PHY_DEBUG_0, - &phy_val); - phy_val &= (~AR40XX_PHY_MANU_CTRL_EN); - ar40xx_phy_dbg_write(priv, i-1, - AR40XX_PHY_DEBUG_0, - phy_val); - } - priv->ar40xx_port_old_link[i] = link; - } else if ((priv->ar40xx_port_old_link[i] == - AR40XX_PORT_LINK_DOWN) && - (link == AR40XX_PORT_LINK_UP)) { - /* Down --> Up */ - if (priv->port_link_up[i] < 1) { - ++priv->port_link_up[i]; - } else { - /* Change port status */ - reg = AR40XX_REG_PORT_STATUS(i); - value = ar40xx_read(priv, reg); - priv->port_link_up[i] = 0; - - value &= ~(AR40XX_PORT_DUPLEX | - AR40XX_PORT_SPEED); - value |= speed | (duplex ? BIT(6) : 0); - ar40xx_write(priv, reg, value); - /* clock switch need such time - * to avoid glitch - */ - usleep_range(100, 200); - - value |= AR40XX_PORT_AUTO_LINK_EN; - ar40xx_write(priv, reg, value); - /* HW need such time to make sure link - * stable before enable MAC - */ - usleep_range(100, 200); - - if (speed == AR40XX_PORT_SPEED_100M) { - u16 phy_val = 0; - /* Enable @100M, if down to 10M - * clock will change smoothly - */ - ar40xx_phy_dbg_read(priv, i-1, - 0, - &phy_val); - phy_val |= - AR40XX_PHY_MANU_CTRL_EN; - ar40xx_phy_dbg_write(priv, i-1, - 0, - phy_val); - } - priv->ar40xx_port_old_link[i] = link; - } - } - } - - if (priv->ar40xx_port_qm_buf[i] == AR40XX_QM_NOT_EMPTY) { - /* Check QM */ - ar40xx_get_qm_status(priv, i, &qm_buffer_err); - if (qm_buffer_err) { - ++qm_err_cnt[i]; - } else { - priv->ar40xx_port_qm_buf[i] = - AR40XX_QM_EMPTY; - qm_err_cnt[i] = 0; - ar40xx_force_1g_full(priv, i); - } - } - } -} - -static void -ar40xx_qm_err_check_work_task(struct work_struct *work) -{ - struct ar40xx_priv *priv = container_of(work, struct ar40xx_priv, - qm_dwork.work); - - mutex_lock(&priv->qm_lock); - - ar40xx_sw_mac_polling_task(priv); - - mutex_unlock(&priv->qm_lock); - - schedule_delayed_work(&priv->qm_dwork, - msecs_to_jiffies(AR40XX_QM_WORK_DELAY)); -} - -static int -ar40xx_qm_err_check_work_start(struct ar40xx_priv *priv) -{ - mutex_init(&priv->qm_lock); - - INIT_DELAYED_WORK(&priv->qm_dwork, ar40xx_qm_err_check_work_task); - - schedule_delayed_work(&priv->qm_dwork, - msecs_to_jiffies(AR40XX_QM_WORK_DELAY)); - - return 0; -} - -/* End of qm error WAR */ - -static int -ar40xx_vlan_init(struct ar40xx_priv *priv) -{ - int port; - unsigned long bmp; - - /* By default Enable VLAN */ - priv->vlan = 1; - priv->vlan_table[AR40XX_LAN_VLAN] = priv->cpu_bmp | priv->lan_bmp; - priv->vlan_table[AR40XX_WAN_VLAN] = priv->cpu_bmp | priv->wan_bmp; - priv->vlan_tagged = priv->cpu_bmp; - bmp = priv->lan_bmp; - for_each_set_bit(port, &bmp, AR40XX_NUM_PORTS) - priv->pvid[port] = AR40XX_LAN_VLAN; - - bmp = priv->wan_bmp; - for_each_set_bit(port, &bmp, AR40XX_NUM_PORTS) - priv->pvid[port] = AR40XX_WAN_VLAN; - - return 0; -} - -static void -ar40xx_mib_work_func(struct work_struct *work) -{ - struct ar40xx_priv *priv; - int err; - - priv = container_of(work, struct ar40xx_priv, mib_work.work); - - mutex_lock(&priv->mib_lock); - - err = ar40xx_mib_capture(priv); - if (err) - goto next_port; - - ar40xx_mib_fetch_port_stat(priv, priv->mib_next_port, false); - -next_port: - priv->mib_next_port++; - if (priv->mib_next_port >= priv->dev.ports) - priv->mib_next_port = 0; - - mutex_unlock(&priv->mib_lock); - - schedule_delayed_work(&priv->mib_work, - msecs_to_jiffies(AR40XX_MIB_WORK_DELAY)); -} - -static void -ar40xx_setup_port(struct ar40xx_priv *priv, int port, u32 members) -{ - u32 t; - u32 egress, ingress; - u32 pvid = priv->vlan_id[priv->pvid[port]]; - - if (priv->vlan) { - egress = AR40XX_PORT_VLAN1_OUT_MODE_UNMOD; - - ingress = AR40XX_IN_SECURE; - } else { - egress = AR40XX_PORT_VLAN1_OUT_MODE_UNTOUCH; - ingress = AR40XX_IN_PORT_ONLY; - } - - t = pvid << AR40XX_PORT_VLAN0_DEF_SVID_S; - t |= pvid << AR40XX_PORT_VLAN0_DEF_CVID_S; - ar40xx_write(priv, AR40XX_REG_PORT_VLAN0(port), t); - - t = AR40XX_PORT_VLAN1_PORT_VLAN_PROP; - t |= egress << AR40XX_PORT_VLAN1_OUT_MODE_S; - - ar40xx_write(priv, AR40XX_REG_PORT_VLAN1(port), t); - - t = members; - t |= AR40XX_PORT_LOOKUP_LEARN; - t |= ingress << AR40XX_PORT_LOOKUP_IN_MODE_S; - t |= AR40XX_PORT_STATE_FORWARD << AR40XX_PORT_LOOKUP_STATE_S; - ar40xx_write(priv, AR40XX_REG_PORT_LOOKUP(port), t); -} - -static void -ar40xx_vtu_op(struct ar40xx_priv *priv, u32 op, u32 val) -{ - if (ar40xx_wait_bit(priv, AR40XX_REG_VTU_FUNC1, - AR40XX_VTU_FUNC1_BUSY, 0)) - return; - - if ((op & AR40XX_VTU_FUNC1_OP) == AR40XX_VTU_FUNC1_OP_LOAD) - ar40xx_write(priv, AR40XX_REG_VTU_FUNC0, val); - - op |= AR40XX_VTU_FUNC1_BUSY; - ar40xx_write(priv, AR40XX_REG_VTU_FUNC1, op); -} - -static void -ar40xx_vtu_load_vlan(struct ar40xx_priv *priv, u32 vid, u32 port_mask) -{ - u32 op; - u32 val; - int i; - - op = AR40XX_VTU_FUNC1_OP_LOAD | (vid << AR40XX_VTU_FUNC1_VID_S); - val = AR40XX_VTU_FUNC0_VALID | AR40XX_VTU_FUNC0_IVL; - for (i = 0; i < AR40XX_NUM_PORTS; i++) { - u32 mode; - - if ((port_mask & BIT(i)) == 0) - mode = AR40XX_VTU_FUNC0_EG_MODE_NOT; - else if (priv->vlan == 0) - mode = AR40XX_VTU_FUNC0_EG_MODE_KEEP; - else if ((priv->vlan_tagged & BIT(i)) || - (priv->vlan_id[priv->pvid[i]] != vid)) - mode = AR40XX_VTU_FUNC0_EG_MODE_TAG; - else - mode = AR40XX_VTU_FUNC0_EG_MODE_UNTAG; - - val |= mode << AR40XX_VTU_FUNC0_EG_MODE_S(i); - } - ar40xx_vtu_op(priv, op, val); -} - -static void -ar40xx_vtu_flush(struct ar40xx_priv *priv) -{ - ar40xx_vtu_op(priv, AR40XX_VTU_FUNC1_OP_FLUSH, 0); -} - -static int -ar40xx_sw_hw_apply(struct switch_dev *dev) -{ - struct ar40xx_priv *priv = swdev_to_ar40xx(dev); - u8 portmask[AR40XX_NUM_PORTS]; - int i, j; - - mutex_lock(&priv->reg_mutex); - /* flush all vlan entries */ - ar40xx_vtu_flush(priv); - - memset(portmask, 0, sizeof(portmask)); - if (priv->vlan) { - for (j = 0; j < AR40XX_MAX_VLANS; j++) { - u8 vp = priv->vlan_table[j]; - - if (!vp) - continue; - - for (i = 0; i < dev->ports; i++) { - u8 mask = BIT(i); - - if (vp & mask) - portmask[i] |= vp & ~mask; - } - - ar40xx_vtu_load_vlan(priv, priv->vlan_id[j], - priv->vlan_table[j]); - } - } else { - /* 8021q vlan disabled */ - for (i = 0; i < dev->ports; i++) { - if (i == AR40XX_PORT_CPU) - continue; - - portmask[i] = BIT(AR40XX_PORT_CPU); - portmask[AR40XX_PORT_CPU] |= BIT(i); - } - } - - /* update the port destination mask registers and tag settings */ - for (i = 0; i < dev->ports; i++) - ar40xx_setup_port(priv, i, portmask[i]); - - ar40xx_set_mirror_regs(priv); - - mutex_unlock(&priv->reg_mutex); - return 0; -} - -static int -ar40xx_sw_reset_switch(struct switch_dev *dev) -{ - struct ar40xx_priv *priv = swdev_to_ar40xx(dev); - int i, rv; - - mutex_lock(&priv->reg_mutex); - memset(&priv->vlan, 0, sizeof(struct ar40xx_priv) - - offsetof(struct ar40xx_priv, vlan)); - - for (i = 0; i < AR40XX_MAX_VLANS; i++) - priv->vlan_id[i] = i; - - ar40xx_vlan_init(priv); - - priv->mirror_rx = false; - priv->mirror_tx = false; - priv->source_port = 0; - priv->monitor_port = 0; - - mutex_unlock(&priv->reg_mutex); - - rv = ar40xx_sw_hw_apply(dev); - return rv; -} - -static int -ar40xx_start(struct ar40xx_priv *priv) -{ - int ret; - - ret = ar40xx_hw_init(priv); - if (ret) - return ret; - - ret = ar40xx_sw_reset_switch(&priv->dev); - if (ret) - return ret; - - /* at last, setup cpu port */ - ret = ar40xx_cpuport_setup(priv); - if (ret) - return ret; - - schedule_delayed_work(&priv->mib_work, - msecs_to_jiffies(AR40XX_MIB_WORK_DELAY)); - - ar40xx_qm_err_check_work_start(priv); - - return 0; -} - -static const struct switch_dev_ops ar40xx_sw_ops = { - .attr_global = { - .attr = ar40xx_sw_attr_globals, - .n_attr = ARRAY_SIZE(ar40xx_sw_attr_globals), - }, - .attr_port = { - .attr = ar40xx_sw_attr_port, - .n_attr = ARRAY_SIZE(ar40xx_sw_attr_port), - }, - .attr_vlan = { - .attr = ar40xx_sw_attr_vlan, - .n_attr = ARRAY_SIZE(ar40xx_sw_attr_vlan), - }, - .get_port_pvid = ar40xx_sw_get_pvid, - .set_port_pvid = ar40xx_sw_set_pvid, - .get_vlan_ports = ar40xx_sw_get_ports, - .set_vlan_ports = ar40xx_sw_set_ports, - .apply_config = ar40xx_sw_hw_apply, - .reset_switch = ar40xx_sw_reset_switch, - .get_port_link = ar40xx_sw_get_port_link, -}; - -/* Platform driver probe function */ - -static int ar40xx_probe(struct platform_device *pdev) -{ - struct device_node *switch_node; - struct device_node *psgmii_node; - struct device_node *mdio_node; - const __be32 *mac_mode; - struct clk *ess_clk; - struct switch_dev *swdev; - struct ar40xx_priv *priv; - u32 len; - u32 num_mibs; - struct resource psgmii_base = {0}; - struct resource switch_base = {0}; - int ret; - - priv = devm_kzalloc(&pdev->dev, sizeof(*priv), GFP_KERNEL); - if (!priv) - return -ENOMEM; - - platform_set_drvdata(pdev, priv); - ar40xx_priv = priv; - - switch_node = of_node_get(pdev->dev.of_node); - if (of_address_to_resource(switch_node, 0, &switch_base) != 0) - return -EIO; - - priv->hw_addr = devm_ioremap_resource(&pdev->dev, &switch_base); - if (IS_ERR(priv->hw_addr)) { - dev_err(&pdev->dev, "Failed to ioremap switch_base!\n"); - return PTR_ERR(priv->hw_addr); - } - - /*psgmii dts get*/ - psgmii_node = of_find_node_by_name(NULL, "ess-psgmii"); - if (!psgmii_node) { - dev_err(&pdev->dev, "Failed to find ess-psgmii node!\n"); - return -EINVAL; - } - - if (of_address_to_resource(psgmii_node, 0, &psgmii_base) != 0) - return -EIO; - - priv->psgmii_hw_addr = devm_ioremap_resource(&pdev->dev, &psgmii_base); - if (IS_ERR(priv->psgmii_hw_addr)) { - dev_err(&pdev->dev, "psgmii ioremap fail!\n"); - return PTR_ERR(priv->psgmii_hw_addr); - } - - mac_mode = of_get_property(switch_node, "switch_mac_mode", &len); - if (!mac_mode) { - dev_err(&pdev->dev, "Failed to read switch_mac_mode\n"); - return -EINVAL; - } - priv->mac_mode = be32_to_cpup(mac_mode); - - ess_clk = of_clk_get_by_name(switch_node, "ess_clk"); - if (ess_clk) - clk_prepare_enable(ess_clk); - - priv->ess_rst = devm_reset_control_get(&pdev->dev, "ess_rst"); - if (IS_ERR(priv->ess_rst)) { - dev_err(&pdev->dev, "Failed to get ess_rst control!\n"); - return PTR_ERR(priv->ess_rst); - } - - if (of_property_read_u32(switch_node, "switch_cpu_bmp", - &priv->cpu_bmp) || - of_property_read_u32(switch_node, "switch_lan_bmp", - &priv->lan_bmp) || - of_property_read_u32(switch_node, "switch_wan_bmp", - &priv->wan_bmp)) { - dev_err(&pdev->dev, "Failed to read port properties\n"); - return -EIO; - } - - mutex_init(&priv->reg_mutex); - mutex_init(&priv->mib_lock); - INIT_DELAYED_WORK(&priv->mib_work, ar40xx_mib_work_func); - - /* register switch */ - swdev = &priv->dev; - - mdio_node = of_find_compatible_node(NULL, NULL, "qcom,ipq4019-mdio"); - if (!mdio_node) { - dev_err(&pdev->dev, "Probe failed - Cannot find mdio node by phandle!\n"); - ret = -ENODEV; - goto err_missing_phy; - } - - priv->mii_bus = of_mdio_find_bus(mdio_node); - - if (priv->mii_bus == NULL) { - dev_err(&pdev->dev, "Probe failed - Missing PHYs!\n"); - ret = -ENODEV; - goto err_missing_phy; - } - - swdev->alias = dev_name(&priv->mii_bus->dev); - - swdev->cpu_port = AR40XX_PORT_CPU; - swdev->name = "QCA AR40xx"; - swdev->vlans = AR40XX_MAX_VLANS; - swdev->ports = AR40XX_NUM_PORTS; - swdev->ops = &ar40xx_sw_ops; - ret = register_switch(swdev, NULL); - if (ret < 0) { - dev_err(&pdev->dev, "Switch registration failed!\n"); - return ret; - } - - num_mibs = ARRAY_SIZE(ar40xx_mibs); - len = priv->dev.ports * num_mibs * - sizeof(*priv->mib_stats); - priv->mib_stats = devm_kzalloc(&pdev->dev, len, GFP_KERNEL); - if (!priv->mib_stats) { - ret = -ENOMEM; - goto err_unregister_switch; - } - - ar40xx_start(priv); - - return 0; - -err_unregister_switch: - unregister_switch(&priv->dev); -err_missing_phy: - platform_set_drvdata(pdev, NULL); - return ret; -} - -static int ar40xx_remove(struct platform_device *pdev) -{ - struct ar40xx_priv *priv = platform_get_drvdata(pdev); - - cancel_delayed_work_sync(&priv->qm_dwork); - cancel_delayed_work_sync(&priv->mib_work); - - unregister_switch(&priv->dev); - - return 0; -} - -static const struct of_device_id ar40xx_of_mtable[] = { - {.compatible = "qcom,ess-switch" }, - {} -}; - -struct platform_driver ar40xx_drv = { - .probe = ar40xx_probe, - .remove = ar40xx_remove, - .driver = { - .name = "ar40xx", - .of_match_table = ar40xx_of_mtable, - }, -}; - -module_platform_driver(ar40xx_drv); - -MODULE_DESCRIPTION("IPQ40XX ESS driver"); -MODULE_LICENSE("Dual BSD/GPL"); |